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Journal of Paleolimnology

, Volume 40, Issue 2, pp 655–659 | Cite as

The HTH sediment corer

  • Ingemar RenbergEmail author
  • Hans Hansson
Original Paper

Abstract

Gravity corers have been in use for a long time and in many different configurations. There are, however, reasons for improvements since new manufacturing materials have become available, and demands for accurate coring and sub-sampling in both research and environmental monitoring have increased. The HTH-coring equipment, which has been tested for >10 years by several users, is a further development of the Kajak-corer concept and has some unique features which are described here. To avoid contamination in pollution studies, the equipment is made of stainless steel and plastic (polyoxymethylene and polyethylene), and the use of these materials also makes the equipment more durable. The extruding device is the main improvement over previous versions. It consists of a piston that seals perfectly to the core tube wall, a threaded rod that can be mounted on a foot plate, and an extruder head with a stationary upper-half and a rotatable lower-half that is screwed along the rod. One 360°-turn gives a 5-mm thick sediment increment that is scraped off using the sectioning tray. Sub-sampling is quick and accurate and can be performed by one person. The equipment is constructed to allow coring and sub-sampling both in summer and winter.

Keywords

Sediment Gravity corer Surface sediment 

References

  1. Aaby B, Digerfeldt G (1986) Sampling techniques for lakes and bogs. In: Berglund B (ed) Handbook of holocene palaeoecology and palaeohydrology. John Wiley, pp 181–194Google Scholar
  2. Brinkhurst RO, Chua KE, Batoosingh E (1969) Modifications in sampling procedures as applied to studies on the bacteria and tubificid oligochaetes inhabiting aquatic sediments. J Fish Res Bd Can 26:2581–2593Google Scholar
  3. Glew JR, Smol JP, Last WM (2001) Sediment core collection and extrusion. In: Last WM, Smol JP (eds) Tracking environmental change using lake sediments volume 1: basin analysis, coring, and chronological techniques. Kluwer Academic Publishers, Dordrecht, pp 73–10Google Scholar
  4. Kajak Z, Kacprzak K, Polkowski R (1965) Chwytacz rurowy do pobierania prób dna. Ekologia Polska Seria B 11:159–165Google Scholar
  5. Renberg I (1991) The HON-Kajak sediment corer. J Paleolimnol 6:167–170Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Department of Ecology and Environmental ScienceUmeå UniversityUmeåSweden
  2. 2.HTH-TeknikLuleåSweden

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